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(No Model.)

0. W. GRANNELL.

COMPOUND PUMP.

..No. 425 933. Patented Apr. 15, 1890.

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(No Model.) I 2 Sheets-Sheet 2.

G. W. ORANNELL. oomroum) PUMP.

No. 425.933. Patented Apr. 15, 1890 g7 1 I v 6700 7265 FUN/711562;.

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UNITED STATES PATENT OFFICE.

CHARLES ORANNELL, OF OBERLIN, KANSAS, ASSIGNOR OF ONE-HALF TO FLOYD XV.OASTERLINE, OF SAME PLACE.

COMPOUND PUMP.

SPECIFICATION forming part of Letters Patent No. 425,933, dated April15, 1890.

Application filed December 12, 1889. Serial No. 338,466. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES W. ORANNELL, a citizen of the United States,residing at Oberlin, in the county of Decatur and State 5 of Kansas,have invented a new and useful Compound Pump, of which the following isa specification.

This invention has relation to compound pumps; and the objects andadvantages of the same, together with the novel features thereof,willhereinafter appear, and be particularly pointed out in the claims.

Referring to the drawings, Figure l is avertlcal section of a wellprovided with a pump 1 constructed in accordance with my invention. Fig.2 is a perspective view of the pump; Fig. 3, a vertical longitudinalsection; Fig. 4c, a transverse section through the pump-cylinder; Fig.5, a detail in perspective of one of the air-escapes.

Like numerals of reference indicate like parts in all the figures of thedrawings.

The hereinafter-described pump is designed to beoperated by any suitablemotor, and is especially adapted for use in dry countries forlrrigatin'g purposes, wherein it is desirable to throw continuous,steady, and large streams over the surrounding territory.

Further objects of the invention are to ac- 0 complish the above resultwith. a pump so constructed as to be capable of production at areasonable cost, which shall consist of few easily manufactured andassembled parts and which shall be very powerful in its operation andcapable of operation with a minimum amount of motive power.

Numerous other objects will appear, and I do not herein wish to limit myinvention to the exact arrangement and construction of the detailsshown, as various changes wholly within the scope and spirit of myinvention may be readily practiced by those familiar with this class ofinvention.

1 represents the pump-stock, which is of any ordinary construction andat its lower end merges into a cylinder2 of considerablygreater diameterthan the stock, and from which it is divided by a diaphragm 3,havi-ng acentral perforation 4, through which is inserted the pump rod 5, whichpasses up through the stock. At this point it is properly packed and isprovided at its upper end with a small pinion 6. The lower end of therod passes through an opening 7 in the false bottom 8, located at thelower end of the cylinder 2, and the extremity of said rod takes bearingina step 9, projecting upwardly from the true bottom 10 of the cylinder,which bottom is provided with a series of feet 11 for elevating the pumpabove the bottom of the well in which the pump is located, as shown inFig.1. Between the false and true bottoms of the cylinder there isformed a suctionchamber 13, which chamber, through the opening 7, hasdirect communication with the cylinder 2, and within the latter cylinderand mounted over the opening 7 and upon the pump-rod,which is rotatable,there is a series of triple-bladed screws 14. The blades of these screwsare arranged in a series of three, each radiating from the rodin theform of three spirals arranged equidistant on the rod and extendingspirally around the rod from the top to the bottom of the cylinder, sothat any water introduced into the suction-chamber will be drawn up intothe cylinder 2,wl1en said blades are rotated at a proper speed, and

exhaust the air within the cylinder, and water thus drawn up will becaught by the blades and thrown toward the wall of the cylinder, andconsequently through any opening that may be formed therein, and whichwill be hereinafter described.

At diametrically-opposite sides of the cylinder 2 are locatedinduction-chambers 18, which are each provided with an opening 19,covered by inwardly-opening valves 20. Each of the induction-chambers isalso provided with an opening 21 in its bottom, which is covered uponits inside by an internal cham- 9o ber 22, mounted within theinduction-chamber, which internal chamber is provided with an opening23, communicating with the induction-chamber, which is covered by aninwardly-opening valve 24. Passages 25 inclose 5 the openings in thebottoms of the inductionchambers and communicate atdiametricallyopposite sides with the suction-chamber in the bottom ofthe cylinder 2. j

The wall of the cylinder 2 at diamctrically- I00 opposite points andbetween the two induction-chambers is provided with eduction-ports 26,and communicating with the same and secured to the cylinder areeduction-chambers 27, from each of which there leads an eductionpipe 28,said pipes meeting above the cylinder 2 and merging into a commondischargepipe 29, from which the water is discharged in any suitablemanner or conducted to any suitable point from the same. From each ofthe induction-chambers there leads to the top of the well air-pipes 30,the upper ends of which communicate with independent airpumps 31,designed to be alternately operated.

Any mechanism desired may be employed for rotating the pump-rods andalternately reciprocating the pistons 32 of the pump-cylders, and I willherein describe a simple means for accomplishing the same.

At each side of the curbing of the well there is located a standard 33,provided upon its upper end with a bearing 34, in which there isjournaled a transverse shaft 3-5, extending across the pump. A pulley36, driven by a belt37, leading from any motor, rotates the shaft, and agear 38, mounted upon the center of the shaft, meshes with and operatesthe small pinion at the upper end ofthe pump rod. Cranked portions 40are formed in this power-shaft, the cranks being oppositely disposed,and each is connected to the upper end of one of the pistons of theair-pumps, so that when one piston is upon the downstroke the otherpiston is upon-the reverse or upstroke, whereby the induction-chambersof the pump will be alternately filled with air in a compressed state.below its pump is provided with a short section or branch pipe 41, whichterminates at its outer end in an air-chamber 42, having an opening 43'at its front normally covered by a gravity swinging valve 45, having alug 44 projecting outwardly from the front face of the valve through theopening inthe chamber; At each side of the pump-cylinders, upon thepower-shaft, I mount ordinary flywheels 46, which while performing theirwellknown functions also perform another function, which I will nowproceed to describe. Each wheel has its inner face provided with aperipheral cam or flange 47, which flange extends one half the distancearound the wheel, and the flange of one wheel occupies a half of itswheel opposite that half of the other wheel occupied by the otherflange, so that when the flange of one wheel is in the upper portion ofthe circumferential path traveled by the same the lower flange is in thelower half of said path. These wheels are so located with relation tothe small air-chambers projecting from the air-pipes that when theflanged halves of the same are in the lower portion or half oftheircircumferential path the flanges or cams are in contact with thelug or stud upon the gravity-valve, thus pressing the same inward andpermitting any air in the induction-chamber with which the Each of theair-pipes air-pipe communicates to escape. It will be apparent, also,that these flanges are arranged in proper relation with the crankedportions of the shaft operating the piston, so that said valves will beoperated at the times that the pistons are on their upstroke.

The operation of my invention may be briefly stated as follows: Themachinery being started, one of the induction-chambers will be exhaustedand water drawn into the same from the well, which water will by adownstroke of the pump-piston connected with this chamber be forced bycompressed air into the internal chamber located within theinduction-chamber, and by reason of the air thus forced into theinduction-chamber the valves will be forced over the opening, and thusprevent an escape of the water back into the well. From the internalchambers the water is forced by the pump down through the passages andinto the suction-chamber at the bottom of the cylinder, and it passes upthrough the opening 7 in the false bottom 8, where it is scooped by thetriple-bladed screw, and by the peculiar formation of the same thrown bycentrifugal force through the eduction-ports at the sides of thecylinder and into the eduction-chambers, and from thence tothe'eduction-pipes, and finally into the discharge-pipe which is commonto both eduction-pipes. The operation of the opposite duplicate portionof the pump is exactly the same as just described, only as one set ofmechanism is inducing water the opposite set is expelling the same, sothat a constant supply of water is passing into the suctionchamber andexpelled by the wheel into the eduction chambers and pipes leadingtherefrom.

Under certain circumstances, as when using the pump inshallow wells, Iproposeto dispense with the air-compressing mechanism, as in such caseits use is not essential to the working of the pump, but still use theairpipes and leave the opening at the top of the pipes open.

Each of the eduction or discharge chambers 27 communicates with anadjacent inductionchamber through anopening or port 4t}, normally closedby an inwardly-opening valve 49. By this opening air pumped intotheinduction-chambers may pass into the eduction or discharge chambers,and thus the water forced through the discharge-pipes.

Certain novel features herein illustrated and described, but notclaimed, form a part of the subject-matter of a companion applicationnow pending, filed October 24, 1889, Serial No. 388,018.

Having described my invention, what I claim is 1.. In a compound pump,the combination, with the pump-stock terminating at its lower end in acylinder communicating with a suction-chamber, of arotatable pump-rodmounted in the stock and having a screw at its lower end,imluction-chambers located at each side of the cylinder andcommunicating therewith, and having induction-ports, and internalchambers mounted in theinduction-chambers andcommunicating therewith andwith the suction-chamber, and a pair of pumps, one of which is connectedwith each of the inductionchambers, and eduction -pipes connecting withthe cylinder, substantially as specified.

2. In a compound pump, thecombinatio'n, with the pump-stock terminatingat its lower end in a cylinder communicating with a suction-chamberlocated at the lower end of the stock, of a rotatable pump-rod mountedin the stock and having a screw at its lower end, induction-chamberslocated at each side of the cylinder and communicating therewith andhaving induction ports and internal chambers mounted in theinduction-chambers and communicating therewith and with thesuction-chamber, a pair of pumps connected with each of theinduction-chambers,

. and eduction-chambers communicating with shaft for the same, and

ports formed in the cylinder, and apipe leading from each of saidchambers and communicating with a common discharge-pipe, substantiallyas specified.

3. The combination, with the pump-stock and enlarged cylinder havingdischarge-ports, induction-chambers communicating'with the cylinderthrough the ports and arranged without and at the side of the cylinderand pipes leading therefrom, and a false bottom having an openingcommunicating with the cylinder and in connection with the true bottom,forming a suction-chamber, of water-supplying devices for deliveringwater I to the suctionchamber, a rotatable pump-rod. and a waterscrew,and means for operating the same, said screw being so constructed as totake up and deliver the water through the eductionports in saidchambers, substantially as specified.

4:. In a compound pump, the combination, with the pump-cylinder andmeansfor delivering water therefrom, of an induction-chamber provided with anopening and an inwardly-opening valve, and provided with an opening aninternal chamber provided with an opening, an inwardly-opening valve,and an airpump communicating with the inductionchamber, and means ofcommunication between the internal chamber and the pumpcylinder,substantially as specified.

5. In a pump, induction-cylinder, an air-pipeleading therefrom, and apump connected to the same and adapted to force air thereinto, of anairchamber located below the pump and communicating with the pipe andhaving an openingcovered by a clap-valve having an outwardly-protrudinglug, and of a wheel, a means for rotating the wheel, which wheel isprovided with a flange or cam for a portion of its circumference adaptedfor contact with the lug of the in its bottom, over which is mountedthecombination, with an.

cut-off, and a consequent opening of the latter, substantially asdescribed.

6. In a pump, the combination, with an induction-cylinder, of anair-pump, a pipe connecting the pump with the cylinder, and anair-escape located between the pump and chamber, a valve covering theescape, and a cam-wheel for opening the valve at each upstroke of thepiston, substantially as specified.

7. The combination, with the pump-cylinder, the stock, theinduction-chambers located at each side of the same and communicatingwith the stock, and provided with valve-openings and exit-ports leadingfrom the cylinder,

of air-pumps located at each side of the pumpstock, air-pipes leadingfrom the pumps to the chambers, pistons mounted in the pumps, a'transverse shaft having oppositely-disposed cranks connected with thepistons, and means for operating the shaft, substantially as speci- S.The combination, with the pump-cylinder having discharge-ports,induction-chambers communicating with the ports, and the lowerinduction-chamber havlng an opening at its center, of the pump-rod andmeans for rotating the same, and the triple-bladed screw, as described,and adapted to take up water and throw the same to the eductionports,substantially as specified.

9. The combination, with the pump-stock terminating in a cylinder, ascrew mounted on a rod within the cylinder, and inductionchamberslocated at the sides of the cylinder and communicating therewith, apinion located upon the end of the pump-rod, and opposite. air-pumps,each communicating with an induction-chamber and provided withreciprocating pistons, of a shaft extending across the stock and havingoppositely-disposed cranks, each connecting with a pumppiston, and acentral gear meshing with the pinion, substantiallyas specified.

10. The combination, with the pump-cylinder, opposite induction-chamberscommunicating therewith, opposite pumps havingpistons, pipes leadingfrom the pumps to the chambers, and air-chambers communicating with thepipe below the pumps and having inwardly-opening valves provided withoutwardly-projecting studs, of a transverse shaft oppositely cranked,and each crank connected with a piston, so that-the pumps are oppositelyoperated, and opposite wheels mounted on the shaft, having the oppositehalves of their inner faces provided with cams or flanges adapted tocome in contact with and operate the valves with the air-chambers, theflange of each wheel occurring opposite the disposition of the adjacentcrank portion of the shaft, so that the air-chambers are opened upon theupstroke of the piston of thepump communicating therewith, and meansrforrotating said shaft, substantially as specified.

11. The combination, with the pump-cylinder having discharge -ports, ofinductionchamberscommunicating with the cylinder,

pumps connected with the induction-chambers and the latter communicatingwith the pump-cylinder, a revolving screw mounted in the cylinder, anddischarge-chambers mounted over the ports of the cylinder andcommunicating with the induction-chambers through valve-openings,substantially as specified.

In testimony thatI claim the foregoing as my own I have hereto affixedmy signature in [0 presence of two Witnesses.

CHARLES W. CRANNELL.

' Witnesses:

F. W. CASTERLINE; E. G. SIGGERS.

